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  • Salt Stress Impacts Photosynthesis in Algae

    Salt Stress Impacts Photosynthesis in Algae

    Data Points

    Scientists investigated how salt affects the photosynthetic electron transport chain in freshwater green alga.

  • Seed Dispersal in Tropical Forests

    Seed Dispersal in Tropical Forests

    Lessons

    In this activity, students use data from published studies to understand patterns of seed dispersal and apply these ideas to the design of a conservation area.

  • Dating Corn Domestication Using Carbon Isotopes

    Dating Corn Domestication Using Carbon Isotopes

    Data Points

    To study the change in diet as human populations changed lifestyles from hunter-gatherers to agriculturalists, scientists measured carbon isotopes in the collagen tissues of human skeletons from North America.

  • Selective Breeding in Maize

    Selective Breeding in Maize

    Data Points

    Researchers performed the longest-running, controlled artificial selection experiment to study whether they could increase the protein concentration of maize (corn) by selective breeding.

  • The Teosinte Hypothesis

    The Teosinte Hypothesis

    Lessons

    In this activity, students further explore the short film Popped Secret: The Mysterious Origin of Corn, by working through the mathematical concepts behind George Beadle’s claim that teosinte is the wild ancestor of maize.

  • Activity for Popped Secret: The Mysterious Origin of Corn

    Activity for Popped Secret: The Mysterious Origin of Corn

    Film Activities

    This activity explores how scientists determined how and where corn was domesticated, as discussed in the short film Popped Secret: The Mysterious Origin of Corn.

  • Modeling Ecosystem Effects of Termite Mound Patterns

    Modeling Ecosystem Effects of Termite Mound Patterns

    Data Points

    Dr. Corina Tarnita and colleagues studied how a pattern of termite mounds across a dryland ecosystem enhances resilience against desertification.

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